HOUSEBOAT CONSTRUCTED IN KATAMARAN STYLE

Description

BACKGROUND OF THE INVENTION 1. TECHNICAL AREA

[0001] The invention relates to a houseboat in catamaran construction with regenerative energy generation assemblies for mobile energy generation and electrical energy supply, as well as a water treatment plant for obtaining drinking water from river or seawater and for clarifying wastewater, and a watercraft in catamaran construction which has an integrated crane traverse. 2. STATE OF THE ART

[0002] A houseboat is a motorboat used as a combined living and transport vehicle, typically for residential purposes or holidays, usually on inland waterways. For living, it offers the flexibility of a "mobile home" compared to a "permanent residence." And for holidays, it provides the opportunity—similar to camping with a motorhome on land—to explore the sights of a holiday region. Large tanks for fuel, fresh water, and sewage are installed, allowing the boat a greater range. It is often powered by diesel engines.

[0003] Patent application DE 41 36 379 A1 proposes a self-sufficient energy supply for an electric auxiliary drive for sailing yachts using solar energy with rigid solar cell surfaces, in addition to the solar surfaces attached on deck instead of the sprayhood around the cockpit and furthermore towards the center of the ship on the outside railing as a bulwark. Solar surfaces are attached with joints or hinges, folded in one or more ways, such that in the retracted (vertical) state the outer solar surfaces point outwards and in the extended, locked state (approximately horizontal) they point upwards.

[0004] German patent DE 34 42 044 C2 describes a catamaran hovercraft which has an extension in the hulls above the displacement waterline, in which, among other things, main propulsion units, electric generators and water treatment plants are located.

[0005] The SeeWohnMobil proposed in utility model DE 20 2006 005 595 U1 has a cabin-like structure with a sleeping alcove at each end, the roof of which is covered with solar panels. Utility model DE 20 2018 003 026 U1 describes an inflatable houseboat with two or more inflatable buoyancy chambers, an inflatable tent, and one or more solar modules slidably mounted on the tent. Utility model DE 20 2018 003 391 U1 proposes a device for mobile energy generation for the electrical power supply of watercraft with a SWATH hull, in which solar, wave energy, and / or wind power assemblies are provided for the electrical power supply.

[0006] The German utility model DE 20 2019 002 311 U1 describes a nearly energy-autonomous houseboat with an integrated pusher boat, on whose roof stationary solar cells are mounted.

[0007] Patent application DE 10 2019 004 515 A1 describes a system for watercraft with regenerative energy generation assemblies for mobile energy generation and electrical energy supply, wherein electric drives serving as propulsion are connected to a watercraft manufactured in lightweight construction, these electric drives as well as all electrical consumers of the watercraft are controlled by a system computer having artificial intelligence.

[0008] US Patent 6,273,015 B1 proposes an electrically powered high-speed boat in which the batteries are housed in torpedo-shaped hulls. US Patent 2008 / 0004759 A1 describes a catamaran-like water camper in which a canopy can be folded over the otherwise open deck. US Patent 4,739,721 A1 describes a catamaran that has an integrated boat suspension in the central area of ​​the boat.

[0009] Australian patent application AU 2013206124 A1 proposes a catamaran-style houseboat with stationary solar panels on the roof of the upper deck, which feed accumulators located in the hulls.

[0010] The Chinese patent CN 10941519 B describes a catamaran-style ship with solar panels and wind generators located on the roof of the upper deck.

[0011] Chinese patent application CN 105836041 A proposes a multi-deck excursion boat of catamaran design with a main deck for passengers, a navigation deck, and an upper deck. Both the navigation deck and the upper deck are equipped with stationary solar panels.

[0012] Disadvantages of the aforementioned watercraft for use as self-sufficient houseboats include, firstly, the inability to exclusively use renewable energy sources, and secondly, the need to carry large tanks for fresh and wastewater. Furthermore, state-of-the-art solar-powered catamarans do not feature sun decks. The well-known SWATH catamarans typically have a deep draft, making mooring on shallower river or lake shores nearly impossible.

[0013] The present invention was therefore based on the objective of providing a catamaran-style houseboat that can be maneuvered even in shallower waters and is largely self-sufficient with regard to its energy supply and water management, so that no large tanks for fuel, fresh water, and sewage are required. In addition, a sun deck should be available that can be used by passengers for relaxation or for holding meetings or celebrations.

[0014] This problem was solved according to the invention by providing a houseboat in catamaran construction with stationary and movable, regenerative

[0015] Energy generation assemblies for mobile energy generation and electrical energy supply, as well as a water treatment plant for obtaining drinking water from river or seawater and for clarifying wastewater, wherein at least one accumulator and the water treatment plant are installed in one or both catamaran hulls. BRIEF SUMMARY OF THE INVENTION

[0016] The invention relates to a houseboat in a double-hull design as a catamaran, wherein both hulls, in contrast to a SWATH design, are fully buoyant, with regenerative energy generation assemblies for mobile energy generation and electrical power supply, as well as a water treatment plant for obtaining drinking water from river or seawater and for treating wastewater, comprising at least one stationary solar collector, an energy storage unit comprising at least one accumulator and at least one fuel cell, and a water treatment plant comprising at least one drinking water filtration system and at least one treatment plant, wherein at least one accumulator and the water treatment plant are installed in one or both catamaran hulls, wherein two movable solar collectors are located on the roof of the upper deck (112), each of which is attached longitudinally to the frame of the roof of the upper deck on the port and starboard sides.Together, when fully extended, they essentially completely cover the surface of the upper deck and, in both the upright and folded positions, form a railing for the roof of the upper deck.

[0017] Advantageous further developments of the houseboat according to the invention are described by the features of claims 2 to 14. BRIEF DESCRIPTION OF THE IMAGES

[0018] Fig. 1 shows the schematic representation of the side view of an embodiment of the houseboat according to the invention; Fig. 2 shows a schematic representation of a side section of the embodiment of the houseboat according to the invention in the version with shaft drive; Fig. 3 shows a schematic representation of an embodiment of the houseboat according to the invention from above; Fig. 4 shows the schematic representation of the bow view of an embodiment of the houseboat according to the invention; Fig. 5 shows the schematic representation of the rear view of an embodiment of the houseboat according to the invention; Fig. 6 shows a schematic representation of a cross-section of an embodiment of the houseboat according to the invention, cut in the middle of the cabin; Fig. 7 shows a schematic representation of a cross-section of an embodiment of the houseboat according to the invention, cut in front of the external staircase; Fig. 8 shows a schematic representation of a cross-section of an embodiment of the houseboat according to the invention, cut in the area of ​​the crane traverse; Fig. 9 shows the schematic representation of the side section of the embodiment of the houseboat according to the invention in the version with motor gondola drive; Fig. 10 shows a schematic representation of a cross-section of an embodiment of the movable solar collector according to the invention in fully unfolded form; Fig. 11 Figure 1 shows a schematic representation of a cross-section of an embodiment of a movable solar collector (A) in vertical and folded form, and (B) in vertical and obliquely unfolded form; Fig. 12 shows a schematic representation of a top view of an embodiment of a movable solar collector from below; Fig. 13 shows the schematic representation of a longitudinal section of an embodiment of the tie rod of the integrated crane traverse according to the invention; Fig. 14 shows the 3-dimensional schematic representation of a detail of a frame corner of the integrated crane traverse according to the invention; Fig. 15 shows a schematic representation of a detail of a frame corner of the integrated crane traverse according to the invention in plan view; Fig. 16 shows a section through the frame corner of the Fig. 15 the line a - a; Fig. 17 shows a schematic representation of a detail of a frame base of the integrated crane traverse according to the invention in top view; Fig. 18 shows a cross-section through the frame base of the Fig. 17 along line a - a. DETAILED DESCRIPTION OF THE INVENTION

[0019] The term "houseboat" as used above and below refers to a motorized watercraft with space for permanent residence including overnight stays for two to approximately twelve people.

[0020] The term "catamaran" or "catamaran design," as used above and below, refers to a boat with two hulls that are rigidly connected to each other (e.g., by a deck). Due to its special frame construction, in conjunction with its highly efficient catamaran hulls, which are not designed as Small Waterplane Area Twin Hull (SWATH) vessels to minimize draft, the solar houseboat according to the invention is extremely versatile, both in terms of its applications and its daily use. The shallow draft allows for maneuvering close to the shore of lakes, rivers, or canals. The ability to freely design the interior layout according to individual needs, combined with a carrying capacity of up to 40 people on board, even while underway, allows for a wide range of uses. These include charter houseboats, floating homes, office or administration vessels, medical practices, and restaurant ships.

[0021] All nautical terms used herein have the meaning that a specialist in sea or river navigation would assign to them. Thus, "port" means the left side of the vessel when viewed from stern to bow, and "starboard" means the right side when viewed from stern to bow. The term "stern" refers to the rear part and "bow" to the front part of the vessel. The term "chainplate" refers to a fitting to which ropes can be attached. In this case, the load cradle serves to transfer the pulling force of a crane into the hulls and is therefore mounted externally, i.e., in the area of ​​the upper deck.

[0022] In addition to its versatility, the following technical features characterize the houseboat according to the invention. Firstly, it exhibits very high energy efficiency in its propulsion system, combined with the independent generation of the required electrical energy. Secondly, in addition to the self-sufficiency of the propulsion system, the handling of blackwater (toilet wastewater) independently of disposal facilities in ports is a key feature, thanks to an onboard wastewater treatment plant. Thirdly, the required drinking water is obtained from the lake or river water used by an onboard filtration system.

[0023] This technical combination of energy generation and water management is intended not only to promote sustainable, environmentally friendly practices in harmony with the surrounding nature, but also to give those on board a feeling of independence, freedom, and comfort. The great strength of this combination lies particularly in its mobile use, as the skipper and crew do not have to plan their journey around ports with refueling stations and waste disposal facilities, but are completely free to design their time on the water and choose their destinations.

[0024] The houseboat according to the invention is designed in a preferred embodiment for 4+2+29 persons. Four berths are permanently installed for long voyages, plus two variable berths in the saloon. In addition, up to 29 more persons can be accommodated on board, particularly on the upper deck, for events of any kind. The hydrostability calculation is performed for a maximum number of persons. For charter events and deck parties, 20-35 persons are assumed. In such cases, a seat (including folding chairs) must be provided for each person. This results in a total capacity of 6+29 persons.

[0025] To prevent drift and facilitate straight-line navigation due to the large wind-exposed surface area of ​​the houseboat according to the invention, the lateral plane of the underwater hull acts as a suitable counterweight. Accordingly, the draft has a calculated minimum value, which was given just as much importance in the design as low resistance at high overall weight. This was achieved through narrow hulls with a suitable draft.

[0026] Additionally, the lateral center of gravity of the superstructure was structurally positioned behind the lateral center of gravity of the underwater hull (weather vane effect). Of particular note are the specially designed, vertically arranged, opaque airfoil profiles at all four corners of the superstructure, which, in conjunction with the specially designed curves of the superstructure, provide a counterforce to leeway. This reduces leeway and makes it easier to maintain course, especially in crosswinds.

[0027] The hull is foam-filled up to the waterline to make it resistant to ice pressure, thus enabling year-round living on the houseboat according to the invention. At the same time, the foam filling serves as a foundation for the accumulators, the wastewater treatment plant, and the drinking water filtration system. Hatches are integrated into the deck beneath the respective rooms as needed, allowing the hull to be used to house the technical equipment.

[0028] The dimensions of the houseboat according to the invention are not critical in themselves and depend primarily on the required boating license, the requirements of the area to be navigated, and the number of crew members and / or passengers. The length of the hull is generally variable. In the present design, the hulls are hydrodynamically calculated for a length of 14.90 m; the beam of the overall hull is 3.50 to 6.50 m, preferably 4.00 to 6.00 m, and more particularly 4.50 to 5.50 m. Depending on the load, the houseboat according to the invention has a draft in freshwater of 0.60 to 1.20 m, preferably 0.70 to 1.10 m, and more particularly 0.80 to 0.95 m.

[0029] In a particular embodiment, it has a length of 14.80 m and a width of 4.80 m.

[0030] When the houseboat according to the invention is used as a charter boat or as a mobile home, the outer walls and a series of reinforced posts in the interior are designed as load-bearing elements, which contribute to the overall static concept of the structure.

[0031] Generally, large window areas are provided to let in plenty of light and to take in as much of the landscape as possible along the journey.

[0032] Similarly, the leading edges of the structure are preferably rounded in order to shift the center of gravity of the wind attack surface to the rear.

[0033] In a crosswind, the houseboat should "turn into the wind". This is achieved when the lateral center of gravity of the superstructure is located behind the lateral center of gravity of the underwater hull (principle of the weathervane), which means that the skeg in front of the propeller must not be too large in order to reduce the lateral plane at the stern.

[0034] The helm station on the main deck is located in the center of the bow lounge. To provide passengers with more space in the lounge, it can be retracted or folded down from the ceiling.

[0035] The interior layout on the main deck is designed to provide ample space for docking and undocking maneuvers, ensuring easy handling of the lines. A central walkway runs along the middle of the houseboat, providing continuous access. Beneath this walkway is a continuous conduit for cables and pipes. The floor is equipped with hatches for easy access to the boat's utilities. Additional lockers can be installed for storing and drying lines. The front windows can be opened wide to maximize the connection with the surrounding nature.

[0036] Trips with the houseboat are generally conducted during the day. The aim is to generate energy from the solar panels, which is then temporarily stored in the batteries or used to discharge the batteries during the trip. This results in a longer discharge time and consequently a higher battery capacity.

[0037] The solar panels on the upper deck are preferably movable solar collectors, which, when the upper deck is in use, can be electrically raised from the helm station, folded vertically to form a railing on the starboard and port sides. For passage under bridges or during normal cruising, the solar panels are laid flat against the upper deck. When the boat is at anchor, the solar panels can be tilted or positioned vertically to optimize their angle towards the sun and capture even more solar energy.

[0038] Preferably, a solar collector consists of two rectangular support frames, each with substantially the same surface area and one or more solar modules, and a rectangular main support beam with substantially the same surface area as one of the support frames. The main support beam has fastening elements on one longitudinal side, allowing it to be rotatably attached to the edge of the sun deck. The two support frames are rotatably attached to the other longitudinal side of the main support beam. The two support frames are connected to the rectangular main support beam in such a way that the solar modules point outwards when folded and upwards when extended. Preferably, the support frames and the main support beam each have a length of 100 cm to 150 cm and a width of 150 cm to 200 cm. Furthermore, the support frames preferably each have four rows of 10 to 20, and in particular 14, solar modules.

[0039] Optionally, retractable wind turbines can be installed to harness wind power as needed. Low noise emissions are a key consideration. Radial wind turbines are preferred because they are significantly quieter than axial turbines. When the boat is in flowing water, the propellers can act as water generators, driven by the water flow, to recuperate electrical energy. An additional hydroelectric generator can be integrated between the hulls as a retractable option.

[0040] An additional emergency fuel cell can generate power whenever there is insufficient battery charge to, for example, get the houseboat out of a dangerous situation. This option is also available when solar power is temporarily insufficient to charge the batteries. While underway, the fuel cell can be manually connected to the battery charge controller via a selector switch as a backup power source when needed. The fuel cell (230 V) can then charge the batteries using standard battery chargers. Once the batteries are full, the charger automatically disconnects the load. When the load drops, the fuel cell is automatically switched off. Optionally, the fuel cell operation can also be controlled by a timer.

[0041] The charging current from solar panels, fuel cell and / or the optional wind / hydropower can be selectively redirected or distributed to different battery banks.

[0042] In both versions, the strength of the forward and reverse, or right and left, thrust is regulated via a normal drive lever. The speed of the houseboat according to the invention results from the total drive power and is a maximum of 10.0 to 15.0 km / h, preferably 12.0 to 14.0 km / h, and particularly around 13.5 km / h.

[0043] For safety reasons on inland waterways, which are sometimes very busy, each drive unit has its own battery bank. This ensures fail-safe redundancy. An emergency switch for the battery banks provides additional safety, allowing them to switch to the other drive unit if necessary. This means that even in the event of a problem with either the motor or battery, the boat can still reach at least the next destination.

[0044] If the possibility of water recuperation is omitted, sail propellers are used for the inboard drives. These align themselves streamlined in the direction of travel with minimal resistance should a drive train fail. However, if recuperation—that is, energy recovery when the water flow is sufficient—is desired, a folding propeller must be avoided, and a fixed propeller is used.

[0045] The houseboat according to the invention and the internal crane traverse for watercraft will be explained in more detail below with reference to illustrations, without limiting the invention to these specific embodiments.

[0046] In Fig. 1 A schematic representation of an embodiment of the houseboat according to the invention is shown from the port side. The bathing platform (101) located at the stern can be folded in or out hydraulically or electrically and can, for example, support an electrically powered tender. The drive (102) in the form of a propeller is located below it. The bow thruster (103) serves to improve maneuverability, particularly when passing through locks or during docking and undocking maneuvers. On the upper deck, movable solar panels (104) are located on the roof of the living area, and fixed solar panels (105) are installed in the bow and stern areas. The four outer bow and stern supports (106) at the corners of the main deck have airfoil profiles that guide the wind around the structure in a highly effective manner.Due to their physical properties, the airfoil profiles provide support, helping to stabilize the vessel and keep it on course even in crosswinds from the front or rear. In the bow area, these airfoil profiles are preferably made of a transparent material such as glass, plexiglass, or acrylic glass to avoid obstructing the operator's view.

[0047] The hull length of this embodiment is approximately 14.90 m with a total width of approximately 4.80 m.

[0048] In the crack diagram of Fig. 2 The drive (102) and the battery bank (107) that supplies it with energy are still visible. Preferably, the boat according to the invention is propelled by two electric drive units via shafts and propellers in front of rudder blades, one in each hull. Bow thrusters (103) are provided in each hull to simplify docking and undocking maneuvers. The bow thrusters are powered by the battery bank of the technical equipment to ensure redundancy and independence from the main drive, allowing for at least minimal maneuverability in an emergency.

[0049] For weight optimization purposes, all batteries are preferably designed as lithium-ion batteries. These are installed in the two hulls at the shipyard, where they are mounted in the foam-filled hulls. The foaming is preferably done with closed-cell polyurethane foam (PUR foam). For maintenance work, the batteries are later accessible from above via hatches.

[0050] In the center of the hull, below the living area, are the wastewater treatment plant (108a) for purifying the wastewater and the water filtration system (108b) for producing drinking water from the waterway. A certified biological wastewater treatment plant (108a) is preferred, capable of purifying the wastewater and releasing it into the environment free of any solids and at drinking water quality. The system is designed for 4-6 people. For events with multiple guests, a day tank for wastewater serves as a temporary storage facility, as the main treatment plant's capacity is limited to 160 liters per day. A wastewater treatment plant, enteron®< 80 from tom logisch (https: / / tomlogisch.com), is particularly preferred.

[0051] The drinking water on board is preferably produced by a certified freshwater system that can convert freshwater from a lake, a rainwater harvesting system, or a reverse osmosis system into purified drinking water. This system must be protected from freezing. The drinking water is collected in a separate 400-liter freshwater day tank.

[0052] Depending on the vessel's operating area, a rainwater harvesting system can be installed on board to reduce the contamination of the freshwater filters. Preferably, an Aquonic® drinking water system from tom logisch is used. If the filters become clogged with dirt, the flow rate can be halved from 120 l / h to 60 l / h. In cases of heavy water contamination, the filters could be flushed with rainwater from the upstream collection system. However, since this would require the installation of an additional tank of approximately 400 liters, a rainwater harvesting system is generally omitted for weight reasons (i.e., draft).

[0053] The same applies to a seawater desalination plant with reverse osmosis, which can convert seawater / brackish water into freshwater. Depending on the area of ​​application (e.g., the Netherlands), this is quite practical. Initially, the smallest system with a capacity of 30 l / h is being considered. However, larger systems are also possible. The bilge pump (114) is used to pump out water that collects in the lower part of the catamaran hulls (113) in the event of a leak or during normal operation.

[0054] The integrated crane traverse (110) on the starboard side extends from forward of the accumulators (107) to aft of the water filtration system (108b). It consists primarily of reinforced GRP frames (GRP = glass fiber reinforced plastic) and four integrated stainless steel anchors. These anchors extend vertically through the support columns at the four attachment points into the hull structure to dissipate the forces generated during lifting and distribute them evenly across the entire boat structure. This prevents stress damage to the boat structure and greatly simplifies the lifting process.

[0055] As can be seen from the schematic overview of Fig. 3 As can be seen, the external staircase (109) provides access from the main deck to the upper deck. The helm station (111) on the upper deck, which is primarily used for docking maneuvers, is located at the aft end on the starboard side, as the working side of the decks is on the starboard side, and starboard is the internationally preferred side for docking and mooring. To provide the operator with greater safety and a better sense of control when passing under bridges, the helm station area is slightly lower than the rest of the upper deck. Three permanently installed solar panels (105) are located at the aft and forward ends of the upper deck. The movable solar panels (104) are located in the midships area of ​​the upper deck. In the illustration, these are folded in on the starboard side, exposing the planks of the sun deck (112). On the port side, the solar panels (104) are shown in the extended position.

[0056] In the schematic representation of the bow view of an embodiment of the houseboat according to the invention of Fig. 4 The permanently installed solar panels (105), the two bow pillars (106), and the two bow thrusters (103) are clearly visible. The catamaran hulls (113) have the cross-sectional shape of an upward-opening parabola. The stern view also shows... Fig. 5 the two stern pillars (106), the propellers of the propulsion (102) located at the end of the catamaran hulls (113), the external staircase (109), the solar panels lying flat above the upper deck (104) and the bathing platform (101).

[0057] In the Figs. 6 and 7 Various positions of the movable solar panels (104) according to the invention can be seen. Fig. 6 The two solar panels (104) on the left side are fully attached to the vertically positioned main support (201) and together form a railing or balustrade, whereas the two solar panels (104) on the right side are fully mounted at a slight angle to the upper end of the main support (201). This angled mounting of the solar panels (104) makes it possible to achieve optimal light yield even when the sun is low, e.g., in the late afternoon. Fig. 7 The main support beam (201) on the port side is inclined at an angle to the upper deck; the outer solar panel (104) is leaning against it, and the inner one is angled at an angle. The solar panels (104) on the starboard side lie flat over half of the upper deck. The accumulators (107) embedded in the PUR foam foundations (115) and located in the catamaran hulls (113) are also visible.

[0058] In Fig. 8 The rear part of the crane traverse (110) is visible. This is formed by a rectangular frame, at each of whose corners is an anchor element that extends into one of the catamaran hulls (details of this are in the Figs. 13 bis 18 (shown).

[0059] In Fig. 9 An alternative embodiment of the houseboat according to the invention is shown, which differs from the one in the Fig. 2 The illustrated embodiment differs only in the type of drive (102). In this alternative embodiment, drive gondolas are used. For this purpose, an electric lift is provided in the gondola suspension to allow the drive to be pulled out of the water in the event of a defect or during water movement while underway. This gondola drive could, for example, have a position for forward thrust of 0° and a position for lateral thrust of 90°. The selection of the position can optionally be made manually or via stepper motors.

[0060] In the Figs. 10, 11A und 11B are schematically shown cross-sections of an embodiment of a movable solar collector (104) in different positions.

[0061] In Fig. 10 The main support (201), rotatably attached to the fastening element (204), is rotated 90° from the vertical. The outer support frame for solar panels (203) rests flush on the main support (201), and the inner support frame for solar panels (202) is folded out at an angle of 180° relative to the main support (201), so that both solar panels point upwards. The main support (201) is rotatably connected to both support frames (202, 203) via the hinge (205). In this position, the solar collector (104) covers one half of the central upper deck. Fig. 11A The main support beam (201), rotatably attached to the fastening element (204), is in a vertical position. The two support frames for solar panels (202, 203) rest securely on the main support beam (201), so that together they form a railing or railing. Fig. 11B The main support (201), rotatably attached to the fastening element (204), is positioned vertically. The two support frames for solar panels (202, 203) are unfolded and form an angle of 180° with each other. While the outer support frame (203) forms an acute angle with the main support (201), from 0 to 90°, preferably 15 to 75°, particularly 30 to 60°, the inner support frame (203) and the main support (201) form the complementary obtuse angle of 180 to 90°, preferably 165 to 105°, particularly 150 to 120°. This orientation is particularly suitable when the sun is low in the early morning or early evening.

[0062] Fig. 12 shows a top view of an embodiment of the movable solar collector (104) according to the invention from below in the same configuration as in Fig. 10 .

[0063] Fig. 13 Figure 1 shows a schematic longitudinal section of an embodiment of the tie rod (303) of the integrated crane crossbeam (110) according to the invention, with the crane eye (loading block) (301) to which the crane hook is attached when lifting the watercraft out of the water. The loading block (301) is screwed to the crane anchor at its upper end via the upper threaded sleeve (302). The frame foot (305), which is attached to the catamaran hull, is connected to the crane anchor via the lower threaded sleeve (304).

[0064] The 3-dimensional schematic representation of a detail of a frame corner of the Fig. 14 , the corresponding supervision of Fig. 15 and the intersection from point a to point a through this overhead view in Fig. 16 Figure 1 illustrates the frame structure of the crane traverse (110) according to the invention. The frame has a total of four such frame corners, each with a crane eye (301). Two longitudinal frame supports (307) and two transverse frame supports (306) span a rectangle that absorbs the lateral forces occurring when lifting the watercraft. Each frame corner has an opening for receiving the tie rod (303) with the load block (301) attached to it.

[0065] The Figs. 17 und 18 Figure 3 shows a detailed view of the frame base (305). The upper frame (403) and the lower frame (404) of the catamaran hull (113) are fixed at their distance using the spacer plate and the fastening elements (402) guided through it, and are attached to the frame base.

[0066] While certain embodiments of the invention have been shown and described with reference to the figures, it is obvious to the person skilled in the art that changes and modifications can be made to them without departing from the invention in its broader aspects. Therefore, the purpose of the attached claims is to cover all such changes and modifications that fall within the scope of the invention.

Claims

1. A houseboat in a double-hull design as a catamaran, wherein both hulls (113) are fully buoyant, in contrast to a SWATH design, having regenerative energy generation assemblies for mobile energy generation and electrical energy supply comprising at least one stationary attached solar collector (105), an energy storage group comprising at least one accumulator (107) and at least one fuel cell, as well as a water treatment plant for obtaining drinking water from river water or seawater and for treating occurring wastewater, comprising at least one drinking water filtration system (108b) and at least one wastewater treatment plant (108a), wherein at least one accumulator (107) and the water treatment plant are installed in one or both catamaran hulls (113), and two foldable solar collectors (104) are located on a roof of the upper deck (112), characterized in that these are each fastened longitudinally to the frame of the roof of the upper deck (112) on the port and starboard sides, together, when fully extended, they essentially completely cover the surface of the upper deck, and when erected and simultaneously folded, they each form a railing for the roof of the upper deck.

2. The houseboat according to claim 1, characterized in that the energy generation assemblies for mobile energy generation furthermore comprise one or more wind turbines and / or one or more hydroelectric generators.

3. The houseboat according to any one of claims 1 or 2, characterized in that, in order to improve wind behavior, the leading edges of the superstructure are rounded and the lateral center of gravity of the superstructure is located behind the lateral center of gravity of the catamaran hulls (113).

4. The houseboat according to any one of claims 1 to 3, characterized in that it has two supports having an airfoil profile in the bow and stern areas, respectively.

5. The houseboat according to any one of claims 1 to 4, characterized in that there are 2 to 12, preferably 6 to 10 are stationary solar collectors (105) on the roof of the upper deck.

6. The houseboat according to claim 1, characterized in that at least one movable solar collector (104) has two surfaces having one or more solar modules to increase the effective solar area, wherein these surfaces are foldable longitudinally toward one another in the middle.

7. The houseboat according to any one of claims 1 to 6, characterized in that the catamaran hulls (113) are filled on the inside up to the waterline using a foam core, which has tub-shaped recesses for accommodating the accumulators and the water treatment plant.

8. The houseboat according to any one of claims 1 to 7, wherein the catamaran hulls have an integrated crane traverse (110) which enables it to lift the houseboat out of the water with the aid of a crane, characterized in that the internal reinforcements (chains) in the houseboat are constructed like a traverse (integral traverse).

9. The houseboat according to any one of claims 1 to 8, characterized in that the catamaran hulls (113), when loaded for travel and with a crew of 1 to 8 persons, have a draft of 500 to 1000 mm, preferably 700 to 900 mm, in particular 825 to 875 mm.

10. The houseboat according to any one of claims 1 to 9, characterized in that the catamaran hulls each contain • an electric drive unit (102), which drives the ship propeller via a shaft, as well as • a bow thruster (103) for docking and undocking maneuvers, both of which are supplied with energy by the respective accumulator (107).

11. The houseboat according to any one of claims 1 to 10, characterized in that each drive unit (102) is connected to a separate accumulator bank (107).

12. The houseboat according to claim 8, characterized in that the hull has a cage-like, integrated crane traverse.

13. The houseboat according to claim 8 or 12, characterized in that it has four attachment points (301) at four points on the upper deck (112), which are located in a profile frame in the ceiling of the houseboat (superstructure deck), connected to anchors (303) which run in vertical, load-bearing frame supports, and are connected to the main deck beams and the bulkheads in the area of the catamaran hulls (113).

14. The houseboat according to any one of claims 1 to 13, characterized in that it is designed for up to 35 persons.